Description

Emtron’s KV12 is a wire in ECU with extreme flexibility. Industry leading I/O count will ensure you do not have to make any sacrifices when configuring your engine and vehicle. This ECU will support up to 12 Channels of Fuel (6 cylinders fully sequential staged injection) and 12 Channels fully sequential Ignition. Every KV12 is housed in a durable billet Aluminium enclosure and includes up to 64Mb permanent memory for on board logging and oscilloscope function, twin DBW control, twin Lambda controllers, twin digital Knock control, Ethernet communications and 3 axis G-force sensing to name a few.

Communications

Injection

The ECU can control both modes of injection: Saturated and Peak & Hold.

Peak and Hold – 12 x channels

When using low impedance injectors (< 5 Ohms) the ECU uses a switch mode current limiting technique to minimise heat dissipation in the Injector. This gives better injector control and helps maximize injector life by lower its operating temperature.

Independently configurable Peak and Hold currents up to 12 cylinders

Max Peak current 8A

Max Hold current 2A

Current limited to 10A.

Flyback Voltage Clamp: 60V.

Saturated

Required when injector resistance is greater than 5 Ohms.

Current limited to 5A.

Flyback Voltage Clamp: 60V.

Auxiliary Fuel Mode

Unassigned Fuel channels can be used to switch or modulate resistive and inductive loads.

When not used as frequency or switched inputs these channels can be used to measure analog signals. All Channels have over voltage protection.

DI 1- 8

Input Analog Voltage Range: 0 – 20.0V

4.88mV resolution (10 bit effective resolution)

Maximum usable Analog Input Voltage: 20.0V

Input Impedance = 39k Ohms to ground.

DI 9- 14

Input Analog Voltage Range: 0 – 20.0V

20.0mV resolution

Maximum usable Analog Input Voltage: 20.0V

Input Impedance = 70k Ohms to ground.

Auxiliary Outputs

The ECU contains 3 different types of auxiliary outputs. These drives are suitable for controlling relays, resistive and inductive loads, stepper motors, DC servo motors and electronic throttles. Auxiliary channels 1-8 can be selected as Low or High Side Control on most models.

Over current / Short to Battery protection Thermal overload protection

Electrostatic discharge (ESD) protection

Reverse Battery Protection

Flyback Voltage Clamp. Battery voltage through Aux 9-12 Supply pin.

Analog Inputs

All analog inputs are sampled using 12bit ADCs. They are suitable for sensors that have an output voltage, potentiometers and temperature sensors. All analog inputs can also be used as switched inputs with activation levels programmable from 0 – 5V.

Analog Voltage Inputs – Up to 14x Channels

Input Analog Voltage Range: 0 -5.0V

100k ohms input resistance to ground

1st order 100Hz Low pass filter.

1.22 mV resolution

Analog Temperature Inputs – Available on 6 channels

Configurable pull-up control on Analog Channels 7 -12

Input Analog Voltage Range: 0 -5.0V

1.0k ohm input resistance to 5.0V and 100k Ohms to 0V

1st order 100Hz Low pass filter.

1.22 mV resolution

Crank & Cam Sensor Inputs

Two Independent channels with Magnetic, Hall effect and Logic options

Maximum signal amplitude /-100V

Input Resistance = 39k Ohms to ground

Switchable Pull-up resistor = 4k7 Ohm to 5.0 V

“True” Zero crossing detection on magnetic based signals

Programmable Independent arming thresholds from 0.1V to 15.0V on all signals

Knock Control

2 Independent channels

Using Bosch, Digital Knock Integrated Circuit Technology

Selectable Frequency from 5 – 15kHz

Selectable Bandwidth form 300Hz – 5kHz

Programmable digital filter coefficients

Selectable gain control

Bank selectable Knock Control

Lambda Control

2 independent channels supporting Bosch LSU4.9 sensors

Using Bosch, Integrated circuit technology for sensor control

Closed Loop heater temperature control for precise lambda measurement

Analog Voltage Outputs

Resolution is 4.88mV (10 bit)

Output voltage range 0 – 5.0V

Output driving current 100mA

Output impedance 22 Ohms

Voltage Supply Outputs

5V Engine Supply

Continuous current: 0.25 Amps

Accuracy: /- 0.5% at 20 °C

Short circuit, Thermal overload protection.

5V Auxiliary Supply

Continuous current: 0.25 Amps

Accuracy: /- 0.5% at 20 °C

Short circuit, Thermal overload protection.

8V CAS

Continuous current: 0.4 Amps

Accuracy: /- 0.5% at 20 °C

Short circuit, Thermal overload protection.

Voltage Supply Inputs

ECU Supply

Main ECU Power Supply

Power Supply for Auxiliary Channels 1- 8 High Side Drivers

Operating Range 6.0V – 22.0V

Aux 9-12 Supply

Power Supply for Auxiliary 9-12 Half Bridge Drivers

o Connect to ECU Power Supply in non DBW applications

o Connect to DBW Relay output in DBW applications

Flyback Supply

Flyback supply for Injector Channels when Peak & Hold mode is active

Flyback supply for Auxiliary Channels.

Connection will depend on loom layout. In most cases connect to a Battery Constant supply to prevent back-feeding issues.

Dedicated Functions

Dedicated Main Relay Control

Provides a relay ground, 100mA Limit

Short circuit, Thermal overload protection

Dedicated Ignition Switch

Used to control Main EFI Relay circuit at key-on

Input Analog Voltage Range: 0 – 20.0V

100k ohms input resistance to ground

Adjustable ON/OFF thresholds. Resolution = 0.1V

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